Sport Relief gets moving under water

It's that time of year again - Sport Relief is kicking off, or splashing down, or diving in or whatever we're supposed to call it when comedian and actor David Walliams is once again taking to the water, this time swimming the length of the River Thames over an eight day period. The waterlogged comic is in there right now, and this will take him much further than his channel swim a couple of years ago which earned £1m for the charity. The effort is therefore going to be much more substantial but given the current financial situation we can only guess whether the amount will be exceeded.